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#1
September 10th 04, 01:35 AM
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Three leg GS to TAS calculation
Does anybody know the calculation to get TAS from the GS of three legs 90
deg apart? Thanks. Mike MU-2 
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#2
September 10th 04, 01:47 AM
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Mike,
Check out Ed Williams' great Aviation Formulary at http://williams.best.vwh.net/avform.htm Jon "Mike Rapoport" wrote in message link.net... Does anybody know the calculation to get TAS from the GS of three legs 90 deg apart? Thanks. Mike MU-2
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#3
September 10th 04, 02:16 AM
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Wow! Thanks. All kinds of useful stuff there.
Mike MU-2 "Jon Woellhaf" wrote in message news:sQ60d.10404$MQ5.2411@attbi_s52... Mike, Check out Ed Williams' great Aviation Formulary at http://williams.best.vwh.net/avform.htm Jon "Mike Rapoport" wrote in message link.net... Does anybody know the calculation to get TAS from the GS of three legs 90 deg apart? Thanks. Mike MU-2
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#4
September 10th 04, 05:43 AM
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On 9-Sep-2004, "Jon Woellhaf" wrote: Check out Ed Williams' great Aviation Formulary at http://williams.best.vwh.net/avform.htm And here are a couple mo http://www.csgnetwork.com/tasgpscalc.html http://www.reacomp.com/true_airspeed/ -- -Elliott Drucker
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#5
September 10th 04, 01:58 AM
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With four 90 deg legs of the same length, you just average the sum.
Mike Rapoport wrote: Does anybody know the calculation to get TAS from the GS of three legs 90 deg apart? Thanks.
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#6
September 10th 04, 03:48 PM
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john smith wrote:
With four 90 deg legs of the same length, you just average the sum. Only if you want the wrong answer. Think about it. -- Marc J. Zeitlin http://marc.zeitlin.home.comcast.net/ http://www.cozybuilders.org/ Copyright (c) 2004
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#7
September 10th 04, 10:24 PM
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If each leg is the same distance, use time not airspeed. Then convert
the average for one leg length. Headwinds, tailwinds, crosswinds cancel. Marc J. Zeitlin wrote: john smith wrote: With four 90 deg legs of the same length, you just average the sum. Only if you want the wrong answer. Think about it.
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#8
September 10th 04, 11:36 PM
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Headwinds and tailwinds do not cancel
"john smith" wrote in message ... If each leg is the same distance, use time not airspeed. Then convert the average for one leg length. Headwinds, tailwinds, crosswinds cancel. Marc J. Zeitlin wrote: john smith wrote: With four 90 deg legs of the same length, you just average the sum. Only if you want the wrong answer. Think about it.
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#9
September 11th 04, 12:54 AM
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10 knots of headwind one way isn't 10 knots of tailwind on a reciprical
course? CB wrote: Headwinds and tailwinds do not cancel
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#10
September 11th 04, 01:33 PM
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john smith wrote:
If each leg is the same distance, use time not airspeed. Then convert the average for one leg length. Headwinds, tailwinds, crosswinds cancel. OK, I'll agree with that, but it's a LOT easier to fly for a fixed TIME than for a fixed distance, unless you fly at about 10' AGL...... -- Marc J. Zeitlin http://marc.zeitlin.home.comcast.net/ http://www.cozybuilders.org/ Copyright (c) 2004
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